Bottle-cap.



PATENTED MAY 29, 1906.

C, P- vBYRNES.

BOTTLE CAP.

APPLIOATION FILED MAR.12,1906.

WITNESSES of the protuberances.

5" disk 7, of cor "Nrrnn sirres PATENT orrron.

Specification of Letters Patent.

Application filed March 12. 1906'. Serial,No.306,469.

To all whom it may concern.- Be it known that I, CLARENCE I. BYRNES, of Sewickley, in the county of Allegheny and State of Pennsylvania, have invented a new anduseful Bottle-Cap, of which the following is a full, clear, and exact description, reference being had to the accompany ng drawings, forming part of' this specification, in which L I Figure 1 is a partial broken perspective view showing the cap in position, Fig. 2 is a cross-section on the line II II of Fig. 1, and Figs. 3 and 4 are partial vertical sections showing modified forms.

The object of the invention is to provide a simple, cheap, and eflective cap-closure for bottles which will avoid crimping or corrugating the wall of the cap. It is also designe to do away with the operation of bending or spinning the metal wall of the cap inwardly under a shoulder or shoulders on the bottle-mouth. In the drawings, 2 represents a bottle-neck having its external Wall reduced in diameter in its u per end portion to form an annular externa shoulder.

The outer surface of the neck or mouth above this shoulder is provided with small projecting bosses or protuberances 3. These may be of any desired shape ornumber and are preferably located at an intermediate point of the height above the shoulder.

The metal cap 4, which may be of ordinary tin-plate or other metal, is providedwith a depending rim portion 5, the internal diameter of which is less than the external diameter of-the reduced neck por ion plus one or. more he internal diameter of the cap is referably about the same as the external 'ameter of the reduced neck, and I preferably employ an outwardly-pro.- jecting flange 6 at the lower edge of the rim portion.

In applyin the cap it is provided with a or suitable yielding material, if. desired, and the cap is forced down over the mouth intothe position shown. As the parts of the cap-wall are forced over the protuberances the flanged portion at such points will straighten out partially and the protu berance will form a ridge in the. side wall. As the flan e strikes the shoulder on the outer part of t e neck, this shoulderwill act to restore the flange to its original angular position and in so doing will press the cap-shoulder between the cap-flange and the cap-wall and the method 0 lockin .cap being less back under the protuberances, thus clench the cap in place. At the same time the wall of the cap will contract under the protuberance, and thus lock the cap in place.

The cap may be removed by the loopopener of the ordinary type, or I may provide a special device to assist in opening.

Thus in Fig. 3 I showthe flange as provided with a projecting lip portion 8 on one side, whichmay be en age to force off the cap. In Fig. 4 I show t e bottle-neck as having a groove or recess 9 extending through the thickened portion to the shoulder. The flange of the c ap may be bent down into this recess or not, as desired.

The advantages of my invention result from the simplicit and cheapness of the cap No crimping or beadin in of the cap-wal is necessa asit is simp y forced on and will lock itsel under" the protuberance or protuberances.

While I prefer to employ the flange on the cap in conjunction with the external co6per- 'ating shoulder on the bottle-neck, the cap locked simply by contraction of its wall under the protuberance or rotuberances. Other changes may be-ma e in the form and arrangement of the neck and cap without departing from my invention.

I claim may be latented May 29, 1906.

acting to 1. A bottle or jar having a glass neck with one or more separated protuberances projecting laterally for part of its circumference,

and a cap having a plain wall of a diameter normally smaller than the neck plus the protuberance, forced over the neck and locked by contraction of the metal under the protuberance; substantially as described.

2. A bottle or jar having'a neck with a projecting protuberance or protuberances, and a meta cap having a plain wall forced upon the neck and locked by=engagement of the metal under the protuberance .or protuberances, said neck .having a sharp shoulder arranged to cover and protect the edge portion of,'the metal cap; substantially as described. I

3. A bottle having. an external shoulder, and a protuberance above the shoulder, and a cap having a plain wall and a lower flan e,- forced upon the neck and looked under t e protuberance, the" normal diameter of the than the neck plus the protuberance; substantially as described.

. 4. Abottle having a neck with an annular shoulder, and a protuberance .above the herence.

shoulder, and a cap having a plain Welland a forced over the neck and locked by engage- I0 lower flange; said cap being forced endwise ment of the metal underthejprotuberances;' upon the neck and locked under, t he protusubstantially as described.

I In testimony whereof I have hereuntoset 5. A bottle or jar having a glass neck promy hand,

vided with aplura'l-ity of OIItWfll'dlY-rPIOJGOtl I Pa BYRN ES.

ing protuberances at separated points in its Witnesses:

' circumference, and a; metal cap normally GEO. B BLEMING,

smaller than the neck plus the protuberance, I JOHN MILLE 

